Question

Diketahui sin x + cos x = 3 dan tan x = 1. tentukanlah nilai sin x dan cos x!

Answer 1

Tan x = 1
depan /samping = 1/1
jadi ,
depan = 1
samping = 1 otomatis,
miring = 1√2 atau √2

jadi,
sin x = de/mi = 1/√2 = 1/2 √2
cos x = sa/mi = 1/√2 = 1/2 √2
 semoga membantu,,
dan semoga tidak salah,,

Answer 2

Sin x + cos x = 3 => cos x = 3 - sin x

tan x = 1
= 1
= 1
sin x = 3 - sin x
2 sin x = 3
sin x =

cos x = 3 - sin x
cos x = 3 -
cos x =